Automatic ash-dump.



No. 789,593. PATENTED MAY 9, 1905. G. DORPFEL.

AUTOMATIC ASH DUMP.

APPLICATION FILED DBO.15, 1904.

2 SHEETS-SHEET 1.

WITNESSES: a maria? flow/543. M 8 I a By ATfOR/VEYS No. 789,593 PATENTEDMAY 9, 1905. O. DORFFEL.

AUTOMATIC ASH DUMP. APPLICATION FILED D3015, 1904.

2 SHEETS-BHEET 2.

WITNESSES: l/VI/Efl/TOR ATTORNEYS Patented May 9, 1905.

ATENT OFFICE.

AUTOMATIC ASH-"DUMP" SPECIFICATION forming part of Letters Patent No.789,593, dated May 9, 1905.,

Application filed December 15, 190 Serial No. 237,030-

To all whom, it may concern.-

Be it known that 1, CHARLES DORFFEL, a citizen. of the United States,residing at Seattle, in the county of King and State of l/Vashington,have invented a new and useful Improvement in Automatic Ash-Dumps, ofwhich. the 'following a specification.

My invention is .in. the nature of a device to be placed in an openingin the hearth of a fireplace or in the lloor beneath the ash-pit of astove, which device while closing the opening against upward draft ofair will when it receives a definite charge of ashes and cinders fromthe grate or stove above automatically transfer the same to the cellarbelow the hearth or into a chute and subjacent receptacle outside of thehouse.

It consists in a rotary receiver mounted on a horizontal axis and formedwith a series of compartments or pockets which open at the periphery, incombination with an inclosing hearth-frame having a hormer-shapcdopening at the top which directs the ashes into the compartment beneaththe same and which compartment when loaded with its charge of ashescauses the rotary receiver to become unbalanced and to automaticallyturn and dump the contents of that compartment into the space below thehearth or floor or into a chute and at the same time bringing anothercompartment into registration with the hopper above ready for the nextcharge.

Figure 1 is a top plan view of the ashdump. Fig. 2 is a vertical sectiontaken at right angles to the axis of the rotary receiver on line 2 2 ofFig. 1. Fig. 3 is a vertical section taken on line 3 3 01 Fig. 2 in theplane of the axis of the receiver. Fig. 4 is a plan view showing therelation of the ashdump to the hearth and chimney-jambs, and Fig. 5represents details of a hanger forming the journal-bearings for therotary receiver.

In the drawings, A represents a rectangular frame of heavy sheet metalformed with a horizontal marginal. flange (1,, which rests upon andpractically on the level of the hearth or floor. This frame is formedwith a sunken or depressed hopper portion. It

has two pendent end plates A A, which ex tend vertically down into therectangular hole cut through the masonry B ot the hearth or lloor, andon the two sides it has also the threesidcd dead-air spaces formed bythe vertical wall A of the frame, a curved wall A, and the inclined wallof the hopper, as seen in Fig. 2.

Below the hopper and fitting closely up to the same and to the curvedside walls A of the frame is arranged the rotary ash-receiver O. This isformed of an axial shaft 0*, rigidly connected to the two end disks 0 c,a central hexagonal core 0 and longitudinal wings c 0, so arrangedv thatany two adjacent Wings 0 0 come together at an angle at one side of thecentral shaft 0 for the purpose hereinafter described.

The wings c c are riveted to the sides of the hexagonal core 0 and formcompartments which open outwardly and which receive the ashes to bedumped. The peripheral width. of these compartments is approximately thewidth of the opening in the bottom of the hopper with which theyregister.

The ash-receiver is journaled in hangcrplates attached to the end wallsA A 01 the frame. These hangers consist each of a plate d, (see Fig. 5,)which has a vertical slot in its upper edge, which slot receives theextended journal of the shaft 0 and is riveted to the pendent edge ofthe end plate A of the frame.

Each compartment of the rotary receiver closes the opening in the bottomof the hopper, so that air and dust cannot rise up through the hearth,and the shape of the com.- partment is such, owing to the angularposition of the inner edges ol" the wings, that when a compartment isfilled with ashes the center of gravity ol the charge will fall to oneside of the axis of the rotary receiver, and the latter willautomatically turn to discharge its lead below into the collar or chuteand another empty compartment will be brought beneath the hopper andinto registration with the same.

The three-sided dead-air spaces on each side of the rotary receiverserve to close communication between the space above and the space belowthe hearth, even it the compartments do not register accurately with thehopper, so that at all times there is no place left for an upward draftof air.

To prevent unburned coals, slate, or clinker from passing into therotary receiver and obstructing its free rotation, a suitable siftingscreen or grating G, of wire-netting or other material, is detachablyarranged in the hopper-shaped opening above the rotary receiver.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. An ash-dump comprising a rotary adjustable receiver and aheartlrframe having journal-bearings for the receiver and an opening inthe top, said frame being adapted to be set into an opening in thehearth-floor substantially as described.

2. An ash-dump comprising a rotary adjustable receiver having ahorizontal axis and compartments around the same opening peripherally,and a hearth-frame having ournalbearings for the receiver and an openingin the top adapted to discharge into the compartments of the receiver,said frame being provided with means for holding it in an opening in thehearth-floor as described.

3. An ash-dump comprising a rotary adjustable receiver, having ahorizontal axis and compartments around the same opening peripherally,and a hearth-frame having ournal-bearings for the same and an opening inthe top with horizontally-extending flange to support the same on thehearth-floor as described.

4. An ash-dump comprising a rotary adjustable receiver having ahorizontal axis and compartments around the same opening peripherally,and a hearth-frame having j ournal-bearings for the receiver, adepressed hopper-shaped opening in the top of the same, a horizontallyextended marginal flange to rest on the hearth and dead-air spacesbetween the inclined sides of the hopper, the

periphery of the receiver and the vertical walls of the framesubstantially as described.

5. The combination with the rotary receiver arranged on a horizontalaxis and having compartments opening peripherally; of a hopper-shapedframe fitting closely above the rotary receiver and a sifter arranged insaid frame above the compartments of the receiver as described.

6. An ash-dump comprising a rotary adjustable receiver having ahorizontal shaft and peripheral compartments, a hearthframe with anopening in the same and pendent end walls and a vertically-slottedjournalplate riveted to the end walls and inclosing the journals of theshaft substantially as described.

CHARLES DORFFEL.

lVitnesses:

TILLIAM B. ALLISON, WILLIS B. HERB.

